3.1 Volcanoes and Plate Tectonics

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Vocabulary

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Volcano- a hole in the crust where lava/magma spurts out
Magma- molten rock, water, and gases
lava- magma on land
Ring of Fire- a major volcanic belt
Island arc- islands made by volcanoes
Hot spot- magma that melts through the crust

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Outline

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What is a Volcano

• hole in ground where magma spurts out

Location of Volcanoes

• Ring of Fire

Volcanoes at Diverging Plate Boundaries

• mid-ocean ridge

Volcanoes at Converging Boundaries

• island arc

Hot Spot Volcanoes

• magma melts through crust----